Electronics Forum | Sat Jan 06 11:39:56 EST 2001 | Steve Thomas
On a related note, I'm wondering if any of the newer devices have any way to factor in paste not releasing from the corners, or for that matter, radiused, oval, or round apertures. We have an LSMII, and all it does it let you draw a rectangle around
Electronics Forum | Wed May 30 17:59:16 EDT 2001 | jollyrodger
It may be the case (if you are using stencils to apply the epoxy) that you will have to indeed use a stepped stencil to appply the epoxy at a greater height. Not being an engineer i am not completely clear with the involvements of stencil design -
Electronics Forum | Wed May 30 17:59:24 EDT 2001 | jollyrodger
It may be the case (if you are using stencils to apply the epoxy) that you will have to indeed use a stepped stencil to appply the epoxy at a greater height. Not being an engineer i am not completely clear with the involvements of stencil design -
Electronics Forum | Thu Jul 19 09:56:52 EDT 2001 | Damian Holzmann
The obvious difference between 2D and 3D is that an accurate volumetric measurement can only be obtained with a 3D measuring system. Laser line measurement in 2D does not allow accurate volumetric measurement. If you modify the aperture in a stencil
Electronics Forum | Wed Sep 21 12:14:47 EDT 2005 | Rob
It's quite a big cap so try taping over about 25% of both apertures to restrict the volume of paste printed then see what happens. Also, is anything interfering with the part during placement? or are you 100% sure it's going into the oven ok? if no
Electronics Forum | Mon Jan 20 03:13:34 EST 2020 | silverlead
Included screenshots from DEK manual, outlining stencil depth adjustment. Basically, distance from rear of the stencil to the front of the image is value needed to be set on scale when positioning stencil. There is an other way to adjust stencil, by
Electronics Forum | Mon Jan 28 16:48:14 EST 2002 | djarvis
Printing with adhesives is no big deal so don't let the sales types try to mystify the process and convince you that they have the only stencils/adhesives/knowledge that can possibly get you through this "trying time" - at a price. Start with 0.010"
Electronics Forum | Fri Nov 23 14:47:35 EST 2001 | kgroen
Some comments on the previous post: Be careful when looking at the proportion of SMT defects that are solder defects - you may very well find that only a small few of them originate at the screen printing step. As for specification limits for pas
Electronics Forum | Fri Oct 13 13:44:03 EDT 2000 | Mike McMonagle
You can achieve a wide range of dot heights when stencil printing by using a polyimide stencil along with a .040 snapoff. Loctite has a system for this that they call Varidot, by varying the size of the apertures in combination with the .040 snapoff
Electronics Forum | Wed Mar 16 09:06:07 EST 2005 | russ
This is what I might do, I would purchase either a solder volume (preferred) or at the least a paste height measurement piece of equipmment, The most important parameters with pronting are volume and registration. You need one of these inspection
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